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Finding the Fourth Proportional to 281,305.66, 388,167.72 and 224,090.74

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Solution

The fourth proportional to 281,305.66, 388,167.72 and 224,090.74 is: 309,218.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,305.66 : 388,167.72 = 224,090.74 : x
  2. Step 2: Convert to fraction form
    281,305.66/388,167.72 = 224,090.74/x
  3. Step 3: Cross multiply
    281,305.66x = 388,167.72 × 224,090.74
  4. Step 4: Simplify right side
    281,305.66x = 86,984,791,618.91
  5. Step 5: Solve for x
    x = 86,984,791,618.91/281,305.66
  6. Step 6: Final answer
    x = 309,218.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.